An Improved Direct Torque Control with an Advanced Broken-Bar Fault Diagnosis for Induction Motor Drives

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left"><i>N</i><sub>Li</sub> = 9</td><td class="align_center">Frequency (Hz)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">a9</td><td class="align_center">0 to 9.7656</td></tr><tr><td class="align_left">d9</td><td class="align_center">9.7656 to 19.53125</td></tr><tr><td class="align_left">d8</td><td class="align_center">19.53125 to 39.0625</td></tr><tr><td class="align_left">d7</td><td class="align_center">39.0625 to 78.125</td></tr><tr><td class="align_left">d6</td><td class="align_center">78.125 to 156.25</td></tr><tr><td class="align_left">d5</td><td class="align_center">156.25 to 312.5</td></tr><tr><td class="align_left">d4</td><td class="align_center">312.5 to 625</td></tr><tr><td class="align_left">d3</td><td class="align_center">625 to 1250</td></tr><tr><td class="align_left">d2</td><td class="align_center">1250 to 2500</td></tr><tr><td class="align_left">d1</td><td class="align_center">2500 to 5000</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Different levels of frequencies.</div>

International Transactions on Electrical Energy Systems

tab7

Table 7

Table 7: An Improved Direct Torque Control with an Advanced Broken-Bar Fault Diagnosis for Induction Motor Drives 